From 9eff1e08b3e580d1e2a998af0243e27c8370c14e Mon Sep 17 00:00:00 2001
From: Luke Shumaker <LukeShu@sbcglobal.net>
Date: Tue, 19 Mar 2013 14:29:04 -0400
Subject: Add pbs and pbs-help, to have it work like git

---
 .gitignore |  1 +
 Makefile   | 55 +++++++++++++++++++++++++++++++++++++++++++++----------
 pbs-help   | 39 +++++++++++++++++++++++++++++++++++++++
 pbs.in     | 21 +++++++++++++++++++++
 4 files changed, 106 insertions(+), 10 deletions(-)
 create mode 100644 .gitignore
 create mode 100755 pbs-help
 create mode 100755 pbs.in

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..974b555
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/pbs
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 96fe6b2..cfbe4a9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,20 +1,55 @@
 PREFIX=/usr/local
 
-BINPROGS=$(shell find * -type f -executable)
+# in a bind, thes can all be set to the same directory
+pbs-bindir = $(PREFIX)/lib/pbs-core
+git-bindir = $(PREFIX)/lib/git-core
+bindir = $(PREFIX)/bin
+libreconfdir = /etc/libretools.d
 
-all: $(BINPROGS) pbs-convert.conf
+pbs-progs := $(shell printf '%s\n' pbs-* | fgrep -v .)
+git-progs := $(shell printf '%s\n' git-* | fgrep -v .)
+bin-progs = pbs
+libreconf := $(wildcard pbs-*.conf)
 
-install: $(addprefix $(DESTDIR)$(PREFIX)/bin/,$(BINPROGS)) $(DESTDIR)/etc/libretools.d/pbs.conf
+install-targets := \
+	$(addprefix $(DESTDIR)$(pbs-bindir)/,$(pbs-progs)) \
+	$(addprefix $(DESTDIR)$(git-bindir)/,$(git-progs)) \
+	$(addprefix $(DESTDIR)$(bindir)/,$(bin-progs)) \
+	$(addprefix $(DESTDIR)$(libreconfdir)/,$(libreconf))
 
-uninstall:
-	for f in $(BINPROGS); do rm -f $(DESTDIR)$(PREFIX)/bin/$$f; done
-	rm -f $(DESTDIR)/etc/libretools.d/pbs-convert.conf
+# phony rules
 
-$(DESTDIR)$(PREFIX)/bin/%: % | $(DESTDIR)$(PREFIX)/bin
-	install -m755 '$*' '${@D}'
+all: PHONY $(pbs-progs) $(git-progs) $(bin-progs) $(libreconf)
 
-$(DESTDIR)/etc/libretools.d/pbs-convert.conf: pbs-convert.conf | $(DESTDIR)/etc/libretools.d
+clean: PHONY
+	rm -f pbs
+
+install: PHONY $(install-targets)
+
+uninstall: PHONY
+	for f in $(install-targets); do rm -f -- $(f); done
+
+# actual file rules
+
+pbs: pbs.in
+	sed 's|@pbs-bindir@|$(pbs-bindir)|g' < $< > $@
+	chmod 755 $@
+
+$(DESTDIR)$(pbs-bindir)/%: % | $(DESTDIR)$(pbs-bindir)
+	cp '$*' '${@D}'
+
+$(DESTDIR)$(git-bindir)/%: % | $(DESTDIR)$(git-bindir)
+	cp '$*' '${@D}'
+
+$(DESTDIR)$(bindir)/%: % | $(DESTDIR)$(bindir)
+	cp '$*' '${@D}'
+
+$(DESTDIR)$(libreconfdir)/%: % | $(DESTDIR)$(libreconfdir)
 	install -m644 '$*' '${@D}'
 
-$(DESTDIR)$(PREFIX)/bin $(DESTDIR)/etc/libretools.d:
+$(addprefix $(DESTDIR),$(pbs-bindir) $(git-bindir) $(bindir) $(libreconfdir)):
 	install -d '$@'
+
+# tricks
+
+.PHONY: PHONY
diff --git a/pbs-help b/pbs-help
new file mode 100755
index 0000000..60d4270
--- /dev/null
+++ b/pbs-help
@@ -0,0 +1,39 @@
+#!/bin/bash -euE
+
+. libremessages
+
+stem=pbs
+
+list_commands() {
+	find ${PATH//:/ } -type f -executable -name "$stem-*" \
+		-printf '%f\n' 2>/dev/null | sed "s/^${stem}-//;/--/d"
+}
+
+master_usage() {
+	echo "Usage: ${pbs_short:-${stem}} COMMAND [OPTIONS]"
+	echo
+	echo "Commands:"
+	list_commands | sed 's/^/  /'
+}
+
+help_usage() {
+	echo "Usage: ${pbs_short:-${stem}} help [OPTIONS] COMMAND"
+	echo "Shows the manual page for a command"
+	echo ''
+	echo 'Options:'
+	echo '  -h            Show this message'
+}
+
+main() {
+	if [[ $# < 1 ]]; then
+		master_usage
+	else
+		if in_array '-h' "$@"; then
+			help_usage
+		else
+			man "$stem-$1"
+		fi
+	fi
+}
+
+main "$@"
diff --git a/pbs.in b/pbs.in
new file mode 100755
index 0000000..bf7cc27
--- /dev/null
+++ b/pbs.in
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+if [[ -z PBS_PATH ]]; then
+	export PBS_PATH=@pbs-bindir@
+fi
+
+if [[ -z "$pbs_cmd" ]]; then
+	export pbs_cmd=$0
+	export pbs_short=${pbs_cmd##*/}
+	export PATH="$PBS_PATH:$PATH"
+fi
+
+main() {
+	if [[ $# < 1 ]]; then
+		pbs-help
+		return 1
+	fi
+	pbs-"$@"
+}
+
+main "$@"
-- 
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